I bought what was supposedly one of the better ones earlier in the year, an 8inch Daewoo... ended up as a mothers day present. My own fault in some ways, should've done more homework.
It couldn't cope with subtle colour gradients, really blocky...although ok for shots with busy backgrounds. I also slipped up in the format...16:9 is a real struggle to present most of your images in.
The concept is excellent though.